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https://github.com/rust-lang/rust
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15 lines
261 B
Rust
15 lines
261 B
Rust
trait Hello {}
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struct Foo<'a, T: ?Sized>(&'a T);
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impl<'a, T: ?Sized> Hello for Foo<'a, &'a T> where Foo<'a, T>: Hello {}
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impl Hello for Foo<'static, i32> {}
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fn hello<T: ?Sized + Hello>() {}
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fn main() {
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hello();
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//~^ ERROR type annotations needed
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}
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